RNA Insider Trading

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Insider Trading History
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Insider Ownership Percentage: 3.83%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $33,292,671.98

Avidity Biosciences Insider Trading History Chart

Avidity Biosciences Share Price & Price History

^$71.54

▼ -0.04 (-0.06%)

As of 12/4/2025 05:00 PM ET

Days: 30 | 90 | 365

Avidity Biosciences Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
10/22/2025	Steven George Hughes	Insider	Sell	2,209	$47.54	$105,015.86	38,867
10/15/2025	Teresa Mccarthy	Insider	Sell	20,000	$50.15	$1,003,000.00	97,130
10/3/2025	Eric Mosbrooker	Insider	Sell	6,562	$45.38	$297,783.56	55,000
9/22/2025	Steven George Hughes	Insider	Sell	2,208	$40.58	$89,600.64	38,867
9/5/2025	Sarah Boyce	CEO	Sell	50,000	$49.95	$2,497,500.00	305,871
9/5/2025	Troy Edward Wilson	Director	Sell	29,500	$50.00	$1,475,000.00	54,425
9/3/2025	Eric Mosbrooker	Insider	Sell	6,563	$47.07	$308,920.41	55,000
9/2/2025	Kathleen P. Gallagher	Insider	Sell	188	$47.42	$8,914.96	50,204
8/28/2025	Sarah Boyce	CEO	Sell	25,000	$49.39	$1,234,750.00	305,871
8/22/2025	Steven George Hughes	Insider	Sell	2,208	$46.40	$102,451.20	38,867
8/15/2025	Teresa Mccarthy	Insider	Sell	10,000	$46.56	$465,600.00	97,130
8/6/2025	Arthur A. Levin	Director	Sell	107,500	$47.62	$5,119,150.00	19,650
8/6/2025	Eric Mosbrooker	Insider	Sell	130,807	$44.06	$5,763,356.42	55,000
8/6/2025	Steven George Hughes	Insider	Sell	81,434	$42.74	$3,480,489.16	38,867
8/6/2025	Troy Edward Wilson	Director	Sell	29,500	$45.00	$1,327,500.00	69,425
8/6/2025	Troy Edward Wilson	Director	Sell	65,554	$45.00	$2,949,930.00	17,776
8/4/2025	John B. Moriarty, Jr.	Insider	Sell	2,245	$36.21	$81,291.45	47,755
6/17/2025	Kathleen P. Gallagher	Insider	Sell	911	$30.24	$27,548.64	50,392
6/11/2025	W. Michael Flanagan	Insider	Sell	20,000	$32.88	$657,600.00	80,195
6/2/2025	Kathleen P. Gallagher	Insider	Sell	5,875	$32.48	$190,820.00	50,554
5/1/2025	Kathleen P. Gallagher	Insider	Sell	5,875	$32.40	$190,350.00	50,554
4/1/2025	Kathleen P. Gallagher	Insider	Sell	5,875	$27.83	$163,501.25	50,554
3/20/2025	Michael F. MacLean	CFO	Sell	7,935	$31.06	$246,461.10	96,720
3/20/2025	Sarah Boyce	CEO	Sell	31,540	$31.06	$979,632.40	305,871
3/20/2025	Steven George Hughes	Insider	Sell	9,578	$31.06	$297,492.68	72,850
2/3/2025	Kathleen P. Gallagher	Insider	Sell	5,875	$32.16	$188,940.00	50,554
1/21/2025	Arthur A. Levin	Director	Sell	1,872	$28.60	$53,539.20	12,958
1/21/2025	Michael F. MacLean	CFO	Sell	3,287	$28.59	$93,975.33	104,655
1/21/2025	Sarah Boyce	CEO	Sell	10,397	$28.59	$297,250.23	337,411
1/21/2025	Teresa Mccarthy	Insider	Sell	2,959	$28.59	$84,597.81	104,908
12/18/2024	Michael F. MacLean	CFO	Sell	11,151	$32.66	$364,191.66	82,942
12/18/2024	Sarah Boyce	CEO	Sell	31,855	$32.66	$1,040,384.30	265,308
12/18/2024	W. Michael Flanagan	Insider	Sell	12,742	$32.66	$416,153.72	72,647
12/16/2024	Teresa Mccarthy	Insider	Sell	25,000	$33.26	$831,500.00	94,018
12/11/2024	W. Michael Flanagan	Insider	Sell	24,000	$35.77	$858,480.00	85,389
11/19/2024	Arthur A. Levin	Director	Sell	3,323	$42.12	$139,964.76	14,830
11/18/2024	Teresa Mccarthy	Insider	Sell	25,000	$41.14	$1,028,500.00	94,018
10/21/2024	Arthur A. Levin	Director	Sell	5,000	$46.63	$233,150.00	14,830
10/16/2024	Teresa Mccarthy	Insider	Sell	25,000	$48.52	$1,213,000.00	94,018
10/7/2024	Tamar Thompson	Director	Sell	30,000	$44.98	$1,349,400.00
9/23/2024	Michael F. MacLean	CFO	Sell	11,510	$44.00	$506,440.00	96,355
9/23/2024	Sarah Boyce	CEO	Sell	32,880	$44.00	$1,446,720.00	234,663
9/23/2024	Teresa Mccarthy	Insider	Sell	13,153	$44.00	$578,732.00	69,018
9/19/2024	Arthur A. Levin	Director	Sell	5,000	$45.73	$228,650.00	14,830
8/19/2024	Arthur A. Levin	Director	Sell	5,000	$45.19	$225,950.00	14,830
8/6/2024	Sarah Boyce	CEO	Sell	28,000	$43.35	$1,213,800.00	205,043
7/19/2024	Arthur A. Levin	Director	Sell	5,000	$45.01	$225,050.00	14,830
7/9/2024	Sarah Boyce	CEO	Sell	28,000	$39.93	$1,118,040.00	205,043
6/20/2024	Arthur A. Levin	Director	Sell	5,000	$37.59	$187,950.00	14,830
6/13/2024	Sarah Boyce	CEO	Sell	164,233	$40.08	$6,582,458.64	112,117
6/12/2024	Arthur A. Levin	Director	Sell	40,000	$35.07	$1,402,800.00	213,872
6/12/2024	Michael F. MacLean	CFO	Sell	104,245	$35.72	$3,723,631.40	44,093
6/4/2024	Sarah Boyce	CEO	Sell	28,000	$27.42	$767,760.00	112,117
5/20/2024	Arthur A. Levin	Director	Sell	5,000	$29.90	$149,500.00	14,830
5/14/2024	Michael F. MacLean	CFO	Sell	75,000	$28.28	$2,121,000.00	44,093
5/7/2024	Sarah Boyce	CEO	Sell	28,000	$25.54	$715,120.00	112,117
4/19/2024	Arthur A. Levin	Director	Sell	5,000	$22.82	$114,100.00	14,830
4/3/2024	Arthur A. Levin	Director	Sell	20,000	$27.11	$542,200.00	253,872
3/13/2024	Michael F. MacLean	CFO	Sell	40,000	$24.52	$980,800.00	44,093
3/12/2024	Arthur A. Levin	Director	Sell	27,641	$22.03	$608,931.23	14,830
3/12/2024	Sarah Boyce	CEO	Sell	28,000	$22.63	$633,640.00	112,117
3/8/2024	Sarah Boyce	CEO	Sell	84,000	$21.39	$1,796,760.00	112,117
1/22/2024	Arthur A. Levin	Director	Sell	1,859	$10.13	$18,831.67	17,471
1/22/2024	Michael F. MacLean	CFO	Sell	1,616	$10.13	$16,370.08	16,884
1/22/2024	Sarah Boyce	CEO	Sell	5,092	$10.13	$51,581.96	44,008
1/22/2024	W. Michael Flanagan	Insider	Sell	4,129	$10.13	$41,826.77	35,871
2/14/2023	Arthur A. Levin	Insider	Sell	10,000	$23.66	$236,600.00	19,330
2/3/2023	Sarah Boyce	CEO	Sell	3,221	$24.26	$78,141.46	53,352
2/1/2023	Sarah Boyce	CEO	Sell	900	$24.27	$21,843.00	53,352
1/12/2023	Arthur A. Levin	Insider	Sell	10,000	$22.00	$220,000.00	1,330

SEC Filings (Institutional Ownership Changes) for Avidity Biosciences (NASDAQ:RNA)

Institutional Buying and Selling by Quarter

Avidity Biosciences Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
12/2/2025	Allworth Financial LP	856	$37K	0.0%	+22.8%	0.001%
12/2/2025	IFP Advisors Inc	3,641	$0.16M	0.0%	+21.2%	0.002%
12/2/2025	Swiss Life Asset Management Ltd	4,899	$0.21M	0.0%	N/A	0.003%
12/1/2025	Cantor Fitzgerald L. P.	114,236	$4.98M	0.0%	N/A	0.076%
11/21/2025	CIBC Bancorp USA Inc.	10,871	$0.47M	0.0%	N/A	0.007%
11/20/2025	Maven Securities LTD	60,000	$2.61M	0.1%	N/A	0.040%
11/17/2025	NewEdge Advisors LLC	29,211	$1.27M	0.0%	+16.2%	0.019%
11/17/2025	CANADA LIFE ASSURANCE Co	22,347	$0.95M	0.0%	+169.5%	0.015%
11/17/2025	Woodline Partners LP	323,774	$14.11M	0.1%	-49.0%	0.215%
11/17/2025	XTX Topco Ltd	15,652	$0.68M	0.0%	N/A	0.010%
11/17/2025	Alyeska Investment Group L.P.	175,000	$7.63M	0.0%	+40.0%	0.116%
11/17/2025	University of Wisconsin Foundation	289,201	$12.60M	10.7%	N/A	0.192%
11/17/2025	Verition Fund Management LLC	35,827	$1.56M	0.0%	+14.2%	0.024%
11/17/2025	Polar Capital Holdings Plc	2,796,760	$121.86M	0.6%	+58.0%	1.856%
11/17/2025	RA Capital Management L.P.	8,641,031	$376.49M	4.6%	+18.9%	5.735%
11/17/2025	Palo Alto Investors LP	109,831	$4.79M	0.9%	-7.6%	0.073%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	122,599	$5.33M	0.0%	-10.7%	0.081%
11/17/2025	Integrated Wealth Concepts LLC	4,736	$0.21M	0.0%	N/A	0.003%
11/17/2025	HighVista Strategies LLC	65,580	$2.86M	0.7%	+60.5%	0.044%
11/17/2025	Fred Alger Management LLC	6,565	$0.29M	0.0%	N/A	0.004%
11/17/2025	Fort Point Capital Partners LLC	31,278	$1.36M	0.2%	+0.6%	0.021%
11/17/2025	Brevan Howard Capital Management LP	14,977	$0.65M	0.0%	N/A	0.010%
11/17/2025	Casdin Capital LLC	1,780,000	$77.56M	6.5%	+0.3%	1.181%
11/17/2025	Cinctive Capital Management LP	30,077	$1.31M	0.1%	N/A	0.020%
11/17/2025	Baker BROS. Advisors LP	625,000	$27.23M	0.2%	N/A	0.415%
11/17/2025	Cantor Fitzgerald L. P.	114,236	$4.98M	0.0%	N/A	0.076%
11/17/2025	Bank of America Corp DE	1,725,186	$75.17M	0.0%	-6.2%	1.145%
11/17/2025	Boothbay Fund Management LLC	52,687	$2.30M	0.0%	+426.9%	0.035%
11/17/2025	Braidwell LP	331,907	$14.46M	0.4%	N/A	0.220%
11/17/2025	Brandywine Managers LLC	12,540	$0.55M	0.5%	N/A	0.008%
11/17/2025	Alliancebernstein L.P.	124,440	$5.42M	0.0%	-4.9%	0.083%
11/17/2025	Ameriprise Financial Inc.	13,784	$0.60M	0.0%	+6.3%	0.009%
11/14/2025	Creative Planning	52,333	$2.28M	0.0%	+33.3%	0.035%
11/14/2025	SummitTX Capital L.P.	49,142	$2.14M	0.1%	+122.4%	0.033%
11/14/2025	Raymond James Financial Inc.	166,611	$7.26M	0.0%	+10.2%	0.111%
11/14/2025	Bellevue Group AG	2,152,862	$93.80M	1.9%	N/A	1.429%
11/14/2025	Burkehill Global Management LP	60,000	$2.61M	0.1%	N/A	0.040%
11/14/2025	Man Group plc	29,450	$1.28M	0.0%	+70.0%	0.020%
11/14/2025	Orbimed Advisors LLC	1,638,886	$71.41M	1.7%	-9.6%	1.088%
11/14/2025	California State Teachers Retirement System	89,328	$3.89M	0.0%	-1.0%	0.059%
11/14/2025	ADAR1 Capital Management LLC	53,656	$2.34M	0.2%	N/A	0.036%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	28,680	$1.25M	0.0%	-3.3%	0.019%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	173,995	$7.58M	0.0%	-56.1%	0.115%
11/14/2025	Suvretta Capital Management LLC	750,000	$32.68M	0.8%	N/A	0.498%
11/14/2025	Avoro Capital Advisors LLC	7,645,000	$333.09M	4.3%	+8.4%	5.074%
11/14/2025	Wellington Management Group LLP	10,065,187	$438.54M	0.1%	+8.8%	6.680%
11/14/2025	Comerica Bank	1,335	$58K	0.0%	+75.9%	0.001%
11/13/2025	Marshall Wace LLP	639,584	$27.87M	0.0%	+962.0%	0.424%
11/13/2025	Kennedy Capital Management LLC	47,593	$2.07M	0.0%	N/A	0.032%
11/13/2025	Invesco Ltd.	188,363	$8.21M	0.0%	-22.5%	0.125%
11/13/2025	Sei Investments Co.	73,363	$3.20M	0.0%	+31.8%	0.049%
11/13/2025	UBS Group AG	1,315,859	$57.33M	0.0%	+120.6%	0.873%
11/13/2025	BNP Paribas Financial Markets	27,291	$1.19M	0.0%	+61.5%	0.018%
11/13/2025	Mackenzie Financial Corp	6,314	$0.28M	0.0%	-13.9%	0.004%
11/13/2025	Franklin Resources Inc.	32,580	$1.42M	0.0%	-13.0%	0.022%
11/13/2025	Quadrant Capital Group LLC	3,193	$0.14M	0.0%	N/A	0.002%
11/13/2025	Legal & General Group Plc	121,814	$5.31M	0.0%	+18.1%	0.081%
11/13/2025	Swiss National Bank	208,800	$9.10M	0.0%	+21.3%	0.139%
11/13/2025	WINTON GROUP Ltd	17,600	$0.77M	0.0%	N/A	0.012%
11/13/2025	Russell Investments Group Ltd.	205,464	$8.95M	0.0%	+11,560.8%	0.136%
11/13/2025	Schroder Investment Management Group	406,031	$17.31M	0.0%	+18.1%	0.269%
11/13/2025	Private Advisor Group LLC	4,713	$0.21M	0.0%	N/A	0.003%
11/13/2025	Parallel Advisors LLC	1,553	$68K	0.0%	-8.9%	0.001%
11/12/2025	Barclays PLC	352,287	$15.35M	0.0%	-5.2%	0.241%
11/12/2025	Orion Porfolio Solutions LLC	30,827	$1.34M	0.0%	+37.3%	0.021%
11/12/2025	Dimensional Fund Advisors LP	385,485	$16.79M	0.0%	+16.6%	0.264%
11/12/2025	Teachers Retirement System of The State of Kentucky	30,079	$1.31M	0.0%	-1.7%	0.021%
11/12/2025	Victory Capital Management Inc.	291,047	$12.68M	0.0%	+513.1%	0.199%
11/12/2025	Monashee Investment Management LLC	50,000	$2.18M	1.1%	N/A	0.034%
11/12/2025	Rafferty Asset Management LLC	173,480	$7.56M	0.0%	+36.7%	0.119%
11/12/2025	Erste Asset Management GmbH	36,000	$1.54M	0.0%	N/A	0.025%
11/12/2025	Handelsbanken Fonder AB	34,500	$1.50M	0.0%	+22.8%	0.024%
11/12/2025	Artisan Partners Limited Partnership	903,292	$39.36M	0.1%	+2.4%	0.619%
11/12/2025	Xponance Inc.	7,987	$0.35M	0.0%	-10.1%	0.005%
11/12/2025	DNB Asset Management AS	7,474	$0.33M	0.0%	N/A	0.005%
11/12/2025	Intech Investment Management LLC	52,953	$2.31M	0.0%	-5.3%	0.036%
11/10/2025	TD Asset Management Inc	457,172	$19.92M	0.0%	+13.1%	0.313%
11/10/2025	Ameritas Investment Partners Inc.	8,520	$0.37M	0.0%	-26.6%	0.006%
11/10/2025	China Universal Asset Management Co. Ltd.	22,551	$0.98M	0.1%	-6.9%	0.015%
11/7/2025	Fiera Capital Corp	1,202,384	$52.39M	0.2%	+53.8%	0.824%
11/7/2025	Readystate Asset Management LP	15,505	$0.68M	0.0%	N/A	0.011%
11/7/2025	Beirne Wealth Consulting Services LLC	5,346	$0.23M	0.1%	N/A	0.004%
11/7/2025	NEOS Investment Management LLC	11,978	$0.52M	0.0%	N/A	0.008%
11/7/2025	Vanguard Group Inc.	13,219,759	$575.99M	0.0%	+42.9%	9.061%
11/7/2025	JPMorgan Chase & Co.	899,557	$39.19M	0.0%	+55.0%	0.617%
11/7/2025	State of New Jersey Common Pension Fund D	47,628	$2.08M	0.0%	-22.1%	0.033%
11/7/2025	PNC Financial Services Group Inc.	1,954	$85K	0.0%	+32.4%	0.001%
11/7/2025	Aberdeen Group plc	304,828	$13.28M	0.0%	+8.9%	0.209%
11/7/2025	GF Fund Management CO. LTD.	2,768	$0.12M	0.0%	-9.4%	0.002%
11/6/2025	Assetmark Inc.	51,186	$2.23M	0.0%	+72.5%	0.035%
11/6/2025	Rhumbline Advisers	158,071	$6.89M	0.0%	-9.9%	0.108%
11/6/2025	Profund Advisors LLC	37,654	$1.64M	0.1%	+37.8%	0.026%
11/6/2025	ProShare Advisors LLC	22,020	$0.96M	0.0%	-21.3%	0.015%
11/6/2025	Oppenheimer Asset Management Inc.	10,894	$0.48M	0.0%	+52.9%	0.007%
11/6/2025	Candriam S.C.A.	487,917	$21.26M	0.1%	+10.2%	0.334%
11/5/2025	Alps Advisors Inc.	70,573	$3.08M	0.0%	+8.5%	0.048%
11/5/2025	Envestnet Asset Management Inc.	179,103	$7.80M	0.0%	+173.2%	0.123%
11/4/2025	Westside Investment Management Inc.	2,066	$89K	0.0%	+100.0%	0.001%
11/4/2025	Allianz Asset Management GmbH	14,500	$0.63M	0.0%	N/A	0.010%
11/4/2025	Principal Financial Group Inc.	7,744	$0.34M	0.0%	-4.6%	0.005%

Data available starting January 2016

Avidity Biosciences, Inc., a biopharmaceutical company, engages in the delivery of RNA therapeutics. It develops antibody oligonucleotide conjugates (AOC) that are designed to treat diseases previously untreatable with RNA therapeutics. The company's lead product candidate AOC 1001 for the treatment of myotonic dystrophy type 1, a rare monogenic muscle disease that is in phase 1/2 clinical trial. Its other products in pipeline include AOC 1044 for the treatment of duchenne muscular dystrophy, which is under phase 1/2 clinical development trial; and AOC 1020 to treat facioscapulohumeral muscular dystrophy that is in phase 1/2 clinical trial. The company is developing products for rare skeletal muscle and rare cardiac diseases. Avidity Biosciences, Inc. was incorporated in 2012 and is headquartered in San Diego, California.

Today's Range

Now: $71.54

$71.42

$71.69

50 Day Range

MA: $60.79

$42.63

$71.58

52 Week Range

Now: $71.54

$21.51

$71.78

Volume

2,514,106 shs

Average Volume

2,988,567 shs

Market Capitalization

$10.78 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.9

Who are the company insiders with the largest holdings of Avidity Biosciences?: Avidity Biosciences' top insider investors include:
Sarah Boyce (CEO)
Arthur A Levin (Director)
Teresa Mccarthy (Insider)
Michael F Maclean (CFO)
W Michael Flanagan (Insider)
Steven George Hughes (Insider)
Troy Edward Wilson (Director)
Eric Mosbrooker (Insider)
Kathleen P Gallagher (Insider)
John B Moriarty (Insider)
Tamar Thompson (Director)
Learn More about top insider investors at Avidity Biosciences.
Who are the major institutional investors of Avidity Biosciences?: Avidity Biosciences' top institutional investors include:
Vanguard Group Inc. — 9.06%
Wellington Management Group LLP — 6.68%
RA Capital Management L.P. — 5.73%
Avoro Capital Advisors LLC — 5.07%
Polar Capital Holdings Plc — 1.86%
Bellevue Group AG — 1.43%
Learn More about top institutional investors of Avidity Biosciences stock.
Which major investors are selling Avidity Biosciences stock?: During the previous quarter, RNA stock was sold by these institutional investors:
Woodline Partners LP
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
Orbimed Advisors LLC
Bank of America Corp DE
Invesco Ltd.
Mutual of America Capital Management LLC
EFG Asset Management North America Corp.
Barclays PLC
Within the previous year, company insiders that have sold Avidity Biosciences company stock include:
Sarah Boyce (CEO)
Arthur A Levin (Director)
Teresa Mccarthy (Insider)
Michael F Maclean (CFO)
W Michael Flanagan (Insider)
Steven George Hughes (Insider)
Troy Edward Wilson (Director)
Eric Mosbrooker (Insider)
Kathleen P Gallagher (Insider)
John B Moriarty (Insider)
Learn More investors selling Avidity Biosciences stock.
Which major investors are buying Avidity Biosciences stock?: Within the previous quarter, RNA stock was purchased by institutional investors including:
Vanguard Group Inc.
Bellevue Group AG
RA Capital Management L.P.
Polar Capital Holdings Plc
Wellington Management Group LLP
Suvretta Capital Management LLC
UBS Group AG
Baker BROS. Advisors LP